\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesPackage{stys/cncover}[2023/05/10,v1.0]
\usetikzlibrary{calc,fadings,patterns}
\usepackage{adjustbox} %修正minipage顶部对齐问题
\makeatletter
%%-------------------封面信息定义-----------------------------------------%%
\newcommand\entitle[1]{\def\@entitle{#1}}
%%--------------------封面信息定义----------------------------------------%%
\makeatother
%%%%===============================================================%%%%%
% \definecolor{coverbgcolor}{HTML}{9CCCDA}
% \definecolor{coverfgcolor}{HTML}{508E99}
% \definecolor{coverbar}{HTML}{305756}
\tikzfading[name=fade right,
                    right color =transparent!100,
                    left color=transparent!50]
\tikzfading[name=fade left,
                    left color =transparent!100,
                    right color=transparent!50]
\tikzfading[name=fade up,
top color =transparent!100,
bottom color=transparent!50]
\tikzfading[name=fade down,
                    bottom color =transparent!100,
                    top color=transparent!50]
\makeatletter
\newcommand*\makecover{
    %% Use the Tikz library positioning and clear the page header and footer
    \usetikzlibrary{positioning}
    \thispagestyle{empty}
    \begin{tikzpicture}[remember picture,overlay]
      \fill[coverfgcolor!75]
        (current page.north west) rectangle (current page.south east);% 填充封面背景颜色 (coverbgcolor)
        \fill[coverfgcolor!50]
        ([xshift=-3\covershift,yshift=-.4\covershift]current page.east) rectangle ([yshift=-1.35\covershift]current page.east); % 被标题背景遮挡露出一部分的装饰矩形
        \fill[coverfgcolor]
        ([xshift=\outermarginwidth]current page.north west) rectangle ([xshift=-\outermarginwidth,yshift=1.5\covershift]current page.south east); % 标题背景大矩形
        \fill[coverbar]
        ([yshift=.44\covershift]current page.west) rectangle ([xshift=\outermarginwidth,yshift=-.4\covershift]current page.west); % 最左侧装饰矩形
        \node[left] at ([xshift=-1.8cm,yshift=-1.5cm]current page.north east) {%
        \parbox{3\covershift}{
        \raggedleft
        \color{white}\sansa\bfseries\fontsize{18}{22}\selectfont\@bookseries}
        }; %系列丛书名称
        \node[right] at ([xshift=\outermarginwidth,yshift=1.5*\covershift]current page.west)
    {\parbox{.8\paperwidth}{%
            \filright%
            \color{white}\sansa\bfseries\fontsize{30}{30}\selectfont\@entitle\\[-1.6ex]
            \begin{tikzpicture}
              \draw[white,line width=1pt] (0,0) --++ (\paperwidth-3\outermarginwidth,0);
            \end{tikzpicture}\\[-.5ex]
            \color{white}\sansa\bfseries\fontsize{30}{30}\selectfont
            \ifdefvoid{\@title}{}{\@title}
        }};% 封面英文书名与中文书名
        \node[left,inner sep=0pt,outer sep=0pt]  at ([xshift=\outermarginwidth,yshift=1.8cm]current page.east)
    {%
    \adjustbox{valign=t}{
            \begin{minipage}{.25\textwidth}
            \begin{tikzpicture}
              \foreach \x/\r in {1.2/6,.8/4} {
              \draw[white,line width=\x pt] (0,0) circle [radius=\r pt];}
              \fill[white] (0,0) circle [radius=2.5pt];
            \end{tikzpicture}
            \hspace{2pt}\color{white}\cabin\fontsize{20}{25}\selectfont Editors
            \end{minipage}}
            \hfill
            \adjustbox{valign=t}{\begin{minipage}{.45\textwidth}
              \raggedright\color{white}\cabin\fontsize{20}{25}\selectfont\@author
            \end{minipage}}
    };% 封面作者信息栏
    \fill [path picture={ \node at (path picture bounding box.center)
    {\includegraphics[height=.92\linewidth]{\@coverimage}};}]
    ([xshift=\outermarginwidth]current page.south west) rectangle ++(1.8*\covershift,.58\paperheight);
        \fill[pattern color=coverfgcolor!70,pattern=horizontal lines,opacity=0.8]
        ([xshift=\outermarginwidth,yshift=.2\covershift]current page.south west) rectangle ([xshift=-\outermarginwidth,yshift=1.43\covershift]current page.south east);
        \fill [coverfgcolor!80,path fading=fade right]%
        ([xshift=\outermarginwidth+.5\linewidth+.2cm,yshift=.2\covershift]current page.south west) rectangle ([xshift=-\outermarginwidth,yshift=1.43\covershift]current page.south east);
        \fill [coverfgcolor!80,path fading=fade left]%
          ([xshift=\outermarginwidth+.5\linewidth+.2cm,yshift=.2\covershift]current page.south west) rectangle ([xshift=-\outermarginwidth,yshift=1.43\covershift]current page.south east);
          \node[left,text=white,font=\sandbox\Large,] at
          ([shift={(3cm,1.5cm)}]current page.south east)  %
      {\raisebox{-.2\covershift}{\includegraphics[width=0.2\linewidth]{\@presslogo}}\hspace*{-2ex}\parbox[c][\covershift][c]{.4\textwidth}{\@pressname}};%
    \end{tikzpicture}%
  \newpage
}
\makeatother
\endinput
% %%%%===============================================================%%%%%





















